#0A4C74
Closest named color: Light Navy (#155084). oklch(40% 0.091 242.6), rgb(10, 76, 116).
Aa
White text reads best on this color (9.13:1).
About this color
#0A4C74 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.091 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.029 away. White text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #0A4C74 |
| RGB | rgb(10, 76, 116) |
| HSL | hsl(203, 84%, 25%) |
| OKLCH | oklch(40% 0.091 242.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0A4C74 | 9.13:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #0A4C74 | 2.29:1 | Fails | Lc 13.4 | Not readable |
| #0A4C74 text on white | 9.13:1 | AAA | Lc 90.6 | Preferred for body text |
| #0A4C74 text on black | 2.29:1 | Fails | Lc -11.7 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDF1
oklch(88.5% 0.038 242.2)
-
Step 300
300
#9BC7E9
oklch(81% 0.067 241.8)
-
Step 400
400
#5FA8DF
oklch(70.6% 0.109 242.9)
-
Step 500
500
#2491D6
oklch(63.1% 0.139 242.7)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900 (this color)
#0A4C74
oklch(40% 0.091 242.6)
-
Step 950
950
#062940
oklch(27% 0.058 242.5)
#0A4C74 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #394D76 | 0.042 |
| Deuteranopia (no green cones) | #2A4473 | 0.031 |
| Tritanopia (no blue cones) | #00565A | 0.062 |
| Achromatopsia (no color) | #484848 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4C74
#0A4C74
oklch(40% 0.091 242.6)
- #693B01
#693B01
oklch(40% 0.09 63.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0A4C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.030
- Twilight Blue #0A437A ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.045
- Dusk Blue #26538D ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Charcoal #264653 ΔE 0.056
- Deep Teal #00555A ΔE 0.060
Use #0A4C74 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.